Circuit-closer



A. F. BEIMDIEK.

CIRCUIT CLOSER.

APPLICATION nuan APR. I0, 1919.

1,354,875. Patented Oct. 5,1920.

W \AW? 'UNlTEDjS-TATES PATENT OFFICE.

UGUsr F. BEIMDIEK, or sr. CHARLES, MISSOURI, ASSIGNOR ro AMERIcAiT Ann ro NnnY come-ANY, or NEW YORK, N. Y., A CORPORATION or ma JERSEY.

- cI RcUm-oLosEn."

To whom-it may concern: Be it known that I, A

full, clear,v and exact description, such as.

will enable others skilled in the art to which it appertains to make-and to use thesame,

reference being had to the accompanying drawings which illustrate the preferred form ofthe invention, though it is to be understood that the invention is not-limited to the exact details of construction shown and described, as it is obvious that various modifications thereof within the scope of the claims will occur to persons skilled in the art.

In said drawings:

Figure 1 is a central vertical section through the expansion drum of a car heating system with my improved circuit closer applied in a horizontal position, and a dia' grammatic showing of a common signaling circuit;

Fig. 2 is a central vertical section through my improved circuit closer,-the float and its supporting means 'being shown in elevation;

3, is a front elevation of the contact plates of my improved circuit closer; and

Fig. 4 is a View showing my improved circuit closer as applied in a vertical position.

This invention relates to circuit closers, and more particularly to a float operated circuit closer for use in connection with the expansion drums of car heating systems.

An objectof my invention is to provide a float operated circuit closer that may be applied to the expansion drums of car heating systems now in use in order that an alarm may be given when the water in the drum falls below a predetermined level. For this purpose, my invention comprises a circuit closer mounted on a plug designed to fit the usual plug openings of the expansion drums and a float, of such dimensions as to readily pass through the plug openings for operating the circuit closer, the whole being assembled without the drum and applied as a unit.

In the drawing, 1 designates the usual cast expansion drum of a car heating system having inlet and outlet pipes 2 and andplugopenings 4 and 5. Opening 4 is, in Fig. 1,closed"by the. usual plug opening 5 is inserted my improved circuit eus r F. BEIMDIEK, I'GSlCllIlg' at St. Charles, Missouri, and being 6, and in Specification of Letters Patent. 'Pa,teflte d 5 Application fi1ei1Apri1 10,19'19. serialize. 283,989. V

closer 7. From the circuit closer 7 wire--8 leads to Signal 10, a switch 9 being provided the circuit closer 7. Joining wires 8 and '13 is -a w1re -14 containing a normally open switch 15 which constitutes a shunt around the circuit closer 7 and serves as a means for test ng the battery 12 and signal 10.

The circuit closer 7 comprises a plug 16 screw threaded to fit the plug opening 5 and provided with' an enlarged angular portion 17 for engagement with "a wrench. "The outer portion of the plug is bored to form a .chamber 18 and from the chamber 18 there which is held to the plug 16 by the collar 26, the plug 16 and hood 25 serving as a casing for the plug 20 and the contact plates 21 and 22. Through an opening-34 in the hood 25 and longitudinal bores 35 'in they plug 20, the wires 8 and 13' are led to the contact plates 21 and 22.

To the inner end of the plug 16 is attached a rod 28 carrying a bracket 29 in which is pivoted the lever 30. To one end of the lever 30 is secured a link 31 which is. connected at its other end to a rod 32 mounted to reciprocate in the bore19 of the plug 16. To the other end of the lever is secured the float From Fig. 1 it will be seen that a lowering of the water level in the drum will cause'a movement of the float 33 which will operate lever 30 and link 31 to move the rod 32 to engage the contact plates 21 and 22, bridging the gap between these plates and completing the circuit for the alarm. To adjust the circuit closer to the predetermined level, the plug 20 is rotated, thus changing the distance the rod 32 must move before engaging the contact plates. In order to insure proper contact. the end of the rod 32 is madeconical and the contact plates are provided with corresponding recesses.

To adapt the structure for application in a vertical position, a modified form of lever 30 can be used as shown in Fig. 4.

What I claim is:

1". In a device of the type described, the comfor cutting the signal. out of service.- From the s1gnal'l0, a wire 11 leads to battery 12 and from battery 12 a wire 13 leads to bination of .a drum having an opening, a chambered plug adapted to be threaded into said opening in said drum, a float pivotally mounted on said plug and adapted to pass through said opening, a. second mounted in the chamber of said first plug, contacts carried by said second plug and a rod passing through said first plug and operated by said float to engage said contacts.

2. In a device of the type described, the com bination of a drum having an opening, anv

insertible device adapted to be applied as a unit comprising a plug adapted to be fitted plug.

to the opehingin the drum, a float pivotally serted through the opening in the drum,a second plug inserted in said first plug, contactscarried by said second plug and means operated by said float to connect said contacts.

In Witness whereof I have hereunto set my hand in the presenceof two witnesses.

I AUGUST F. BEIMDIEK. Witnesses:

GEORGIA BELDING, BELLE TUTTLE.

- mounted on said plug and adapted to be in- 15 

